Screen formats are determined by the specific aspect ratio of the
screen. Aspect ratio is the fractional relation of the width of a video
image compared to its height. The two most common aspect ratios in home
video are 4:3 (also known as 4×3, 1.33:1, or standard) and 16:9 (16×9,
1.78:1, or wide-screen). All the older TVs and computer monitors you
grew up with had the squarish 4:3 shape–only 33 percent wider than it
was high. On the other hand, 16:9 is the native aspect ratio of most
HDTV programming; it is 78 percent wider than it is tall, or fully
one-third wider than 4:3.
So which aspect ratio is best for you? Today, the most commonly sold
aspect ratios screens for home theaters are 1.78:1 (16:9) and now
growing 2.35:1 (CinemaScope). 16:9 aspect ratio screens are a perfect
match to today’s HD video projectors.
To figure out what aspect ratio may be best for you, you may consider the following:
If you are building a dedicated room geared mostly towards movie
watching, then we would suggest a 2.40/2.35 Aspect Ratio screen since
this is what most movies are usually shot in. However, when you watch
16:9 and 4:3 aspect ratio content on your 2.35/2.40 projection screen, you will have black bars on the left and right of the projected image.
If you are purchasing a screen for a media room or primary viewing of
HDTV channels and video game playing, then we would suggest a 1.78:1
(16:9) projection screen. However, when you watch 2.35 and 1.85 movies
you will have black bars above and below your projected image. When
watching 4:3 content, you will have black bars on the sides of your
projected image.
It is very simple but first, we should know about the types of manual pull-down projection screens that are down below. 1.) Manual Auto/lock Projection Screen 2.) Manual Pull Down Spring Action Now, Let’s see what is the difference between these two and how they work. Manual Auto/lock Projection Screen The manual auto-lock projection screen locks there were to leave it. There is manual auto-lock projection you are pulling it out of the casing by holding the hook or whatever there is to pull it down. You don’t need to hook it onto a nail or anything it stops automatically and to roll it back you just need to give it a little push and the spring in the casing will do the rest. Manual Pull Down Spring Action Also known as the wall type spring action. The core difference between these two was the self-lock mechanism. Manual pull down spring action doesn’t have any instant locking system. So you have to hook the holder onto a nail to make it stop ...
The OhYes Floor Rising portable projection screen is the perfect companion for business presentations, trade shows, hospitality, a simple home theater or any portable application! Easily transportable and free-standing, the lightweight screen uses a manual telescoping pull up mechanism that lifts the screen from the casing. Once finished projecting, the screen retracts just as easily. The OhYes Floor Rising projector screen comes with a built-in keystone eliminator, which allows the screen to tilt forward in multiple increments, in order to compensate for angled tabletop projection setups. The sleek black aluminum case features an ergonomic carrying handle and folding feet to add stability to the projector screen when it’s open. A height adjustable bottom black border is also added to raise the screen further from the ground, to normal viewing height. The OhYes Floor Rising screen also features a durable flame retardant and mildew resistant screen mat...
Turn any room into a meeting room or classroom with this OHYES Screens Tripod Series portable projector screen. Keystone eliminator mechanisms offer easy aiming and calibration, while the MaxWhite screen material delivers a clear, crisp viewing area. A folding tripod eliminates the need for ceiling or wall mounting, making this screen conveniently portable. With a 160° viewing angle and compatibility with 4K Ultra HD, active 3D and HDR, this Elite Screens Tripod Series portable projector screen provides exceptional picture quality from virtually anywhere in your room. Portable projection screen for indoor and outdoor small or large venue presentations Diagonal size: 113″ Aspect ratio: 1:1 MaxWhite screen material is durable and easy to clean Frame construction: steel Packaging dimension: 4.7″H x 4.7″W x 90″D Weight: 17.9 lbs. Meets or exceeds GREENGUARD/GREENGUARD Gold standard Viewing angle: 160 degrees wide with 1.1 gain 2-year manufacturer limited warranty...
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